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About Me

YuXuan Wu・Horikita Saku National University of Singapore
A student aspiring to leverage AI for advancing natural and fundamental sciences.

Self Introduction

Autonym: YuXuan Wu; Pseudonym: Horikita Saku

Majored in artificial intelligence as an undergraduate.

Interested in the intersection of data science and natural sciences, particularly in the realms of biological information and astrophysical.

Currently conducting research on discrete representation and AI applications in bioinformatics and medicine, including GWAS and single-cell analysis.

Kaggle Master.

My personality

I appreciate quiet spaces, reading, listening to the rain and relishing a good cup of coffee.

My favorite book is If On a Winter’s Night a Traveler.

Probably a bit workaholic.

Publications

CodeUnlearn: Amortized Zero-Shot Machine Unlearning in Language Models Using Discrete Concept

YuXuan Wu, Bonaventure F. P. Dossou, Dianbo Liu
Under Review at ICML · 2025

Pages

NeurIPS - Ariel Data Challenge 2025 Review

7th place. First gold medal.
2025-09-27
7 min read
Featured Image

IceCube - Neutrinos in Deep Ice

The top 3% of all participating teams globally. First Silver Medal. My story in the competition.
2023-10-26
10 min read
Featured Image

First time with the astronomical telescope.

Try to calibrate astronomical telescopes and make observations of Jupiter and Saturn.
2023-10-11
1 min read
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Experience

Kaggle Master

2023 - Present

Visiting Scholarship

Cognitve AI for Science Team · National University of Singapore
2024.1-Present
  • Single cell omics analysis
  • VQ-VAE / Discrete Representation / Machine unlearning

NeurIPS - Ariel Data Challenge 2025 - Gold Medal 7th

Predict the area ratio of planets and stars and the confidence level (uncertainty) sigma.

  • Achieved the 7th(1%) in the NeurIPS Competition. Achieve my first gold medal.
  • We have developed a method that spans from heuristic forward modeling to Gaussian processes, to deep learning, and to gradient boosting trees.
  • Become Kaggle Competition Masters.

IceCube - Neutrinos in Deep Ice - Silver Medal(top3%)

Reconstruct the direction of neutrinos from the Universe to the South Pole

  • Achieved the 21th in the Neutrinos and Astrophysics competition, ranking in the top 3% globally among all participating teams.
  • Utilized a 3D point cloud convolution model based on the EdgeConv operator, developed various RNN models, and employed a multi-stage training method grounded in IceCube’s physical principles.
  • This achievement also marks my first medal in Kaggle competitions.

HMS - Harmful Brain Activity Classification - Silver Medal(top2%)

Developed a model trained on Electroencephalography (EEG) signals and Spectrogram recorded from critically ill hospital patients to classify a variety of harmful brain activities.

  • Achieved 38th place in the Neuroscience and Physiology competition, ranking in the top 2% globally among all participating teams.
  • Developed a 1D model based on EEG signals and employed innovative training methods to create an effective 1D+2D multi-modal model.